Now we turn to mystery of the tape. Did no one see the camera? Who pushed the button? Brian ross as he's evens. The setting was this mansion in boca raton, florida, home of long-time romney support arer and friend, multimillion investor, known as a party boy. In gossip pages. It was may 17th and reporters were told the event would be closed to the public. Too bad you can't come to the fund-raisers. Reporter: Dinner was supposed to be private and limited to those who paid $50,000 each to be there but someone placed a camera in the room secretly serving romney on what appears to be a wine-serving table off to the side. Occasionally the camera was adjusted as he delivers the remark that four months later made headlines. My job is not to worry about those people. Reporter: The romney tapes were first posted online on youtube may 31st by a new user with the account romney exposed but they did not include the clip of the now infamous 47%. And it was only in late august when the story began to take shape as mother jones magazine was put in touch with the source through the grandson of former president jimmy carter who told msnbc today the source was not a $50,000 donor. I think it's probably fair to assume that. Reporter: Under florida law it's a crime, felony who record someone who has an expectation who won't be recorded. Although some say a can daze for president is being recorded by someone, somehow. Somehow.

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